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- W3174793675 abstract "The modal analysis is revisited through the symplectic formalism, what leads to two intertwined eigenproblems. Studying the properties of the solutions, we prove that they form a canonical basis. The method is general and works even if the Hamiltonian is not the sum of the potential and kinetic energies. On this ground, we want to address the following problem: data being given in the form of one or more structural evolutions, we want to construct an approximation of the Hamiltonian from a covariant snapshot matrix and to perform a symplectic decomposition. We prove the convergence properties of the method when the time discretization is refined. If the data cloud is not enough rich, we extract the principal component of the Hamiltonian corresponding to the leading modes, allowing to perform a model order reduction for very high dimension models. The method is illustrated by a numerical example." @default.
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- W3174793675 date "2021-01-01" @default.
- W3174793675 modified "2023-10-11" @default.
- W3174793675 title "Constructing the Hamiltonian from the Behaviour of a Dynamical System by Proper Symplectic Decomposition" @default.
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- W3174793675 doi "https://doi.org/10.1007/978-3-030-80209-7_48" @default.
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